﻿#region License
// Copyright 2009 Buu Nguyen (http://www.buunguyen.net/blog)
// 
// Licensed under the Apache License, Version 2.0 (the "License"); 
// you may not use this file except in compliance with the License. 
// You may obtain a copy of the License at 
// 
// http://www.apache.org/licenses/LICENSE-2.0 
// 
// Unless required by applicable law or agreed to in writing, software 
// distributed under the License is distributed on an "AS IS" BASIS, 
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
// See the License for the specific language governing permissions and 
// limitations under the License.
// 
// The latest version of this file can be found at http://dotcommon.codeplex.com
#endregion

using System.Web;
using System.Linq;
using System.Web.Mvc;
using System.Web.Routing;

namespace DotCommon.Mvc
{
    /// <summary>
    /// Lightweight subcontroller used to make partial request from a view.
    /// <example>
    ///     <% new SubController(new { 
    ///                 controller = "Tag", 
    ///                 action = "GetTagCloud",
    ///                 maxItems = 100
    ///             }).Invoke(html.ViewContext);  %>
    /// </example>
    /// </summary>
    public class SubController
    {
        public RouteValueDictionary RouteValues { get; private set; }

        public SubController(object routeValues)
        {
            RouteValues = new RouteValueDictionary(routeValues);
        }

        public void Invoke(ControllerContext context)
        {
            var data = new RouteData(context.RouteData.Route, context.RouteData.RouteHandler);
            RouteValues.ToList().ForEach(pair => data.Values.Add(pair.Key, pair.Value));
            IHttpHandler handler = new MvcHandler(new RequestContext(context.HttpContext, data));
            handler.ProcessRequest(HttpContext.Current);
        }
    }
}
